Free-focus radiography using conventional films: Radiation exposures in a simulated clinical study

Journal Article · Tue Jul 01 04:00:00 EDT 1980 · Med. Phys.; (United States)

DOI:https://doi.org/10.1118/1.594690· OSTI ID:5255525

Jensen, T W; Randall, G J; Goldberg, A J

This study compared air exposures during conventional dental and maxillofacial radiography and similar views using free-focus radiography with conventional image receptors. The results show that periapical type surveys on nonscreen film placed extraorally or in the buccal fold may be carried out with an exposure to the surface tissues, which is similar to or less than conventional dental radiography. Extraoral survey type radiographs of the jaws may be carried out with significantly less surface exposure than lateral oblique views of the jaws. The least exposure was required, when the film was placed in the buccla fold instead of against the face during free-focus radiography. The exposures with film screen combinations were reduced by an order of magnitude when compared to the nonscreen techniques. Proper filtration of the beam of the miniaturized x-ray machines radiography in dentistry may thus be desirable and applications in other parts of the body encouraged.

• Research Organization: The University of Connecticut Health Center, Farmington, Connecticut 06032
• OSTI ID: 5255525
• Journal Information: Med. Phys.; (United States), Journal Name: Med. Phys.; (United States) Vol. 7:4; ISSN MPHYA
• Country of Publication: United States
• Language: English

Related Subjects

61 RADIATION PROTECTION AND DOSIMETRY
655003* -- Medical Physics-- Dosimetry
BIOMEDICAL RADIOGRAPHY
DENTISTRY
DIAGNOSTIC TECHNIQUES
DOSES
FILMS
MEDICINE
NUCLEAR MEDICINE
RADIATION DOSES
RADIOLOGY
X-RAY EQUIPMENT